Certain things you just have to leave and move on. I could see in your photo that the yarn was problematic. First, it was a thin sport weight. Second, I could see the sheen on it. It actually looked more like embroidery floss. I can see where it would split. All in all, very difficult to work with. It was probably more suited to tatting, but that's a special hell unto itself.

You learned some good lessons from this experience. Another hint about crochet fibers. You can always look up the nmae brand and the specific yarn and see what types of items are made from it. They might even have pattern instructions.

And--YES--dye lots are crucial!